वाशरी

1. पश्चिमी वाशरी क्षेत्र 2.पूर्वी वाशरी क्षेत्र/डब्ल्यू सी डी
 

Introduction:

  • Coal Washing is a process of separation mainly based on difference in Specific Gravity of Coal and associated impurities like Shale, Sand & Stones etc so that we get relatively pure marketable coal without changing its physical properties.
The Washed Coking Coal is meant for Steel Plants. The Washed Power Coal/Washed Non-Coking Coal/Middlings is dispatched to various Power Houses.
Washing Process:
  Washery System of Washing
  Dugda-II HM Cyclone (13-0.5mm), Flotation (-0.5mm)
  Bhojudih Deshaling Jig (75-0mm), HM Bath (75-25mm),
    Batac Jig (25-0.5mm), Flotation (-0.5mm)
  Patherdih Deshaling Jig(75-0mm), HM Bath(75-13mm),
    HM Cyclone (13-0.5mm)  
  Sudamdih 2 Stage HM Cyclone (37-0.5mm), Flotation (-0.5mm)
  Moonidih 2 Stage HM Cyclone (30-0.5mm),W/O Cyclone(-0.5mm)
  Mohuda HM Cyclone (25-0.5mm), Flotation (-0.5mm)
  Madhuban Batac Jig (13-0.5mm), Flotation(-0.5mm)
  Name of Washery Year of Commissioning Operable Capacity(MTY)
A. Coking Coal:
1 Dugda-II 1968 2.00
2 Bhojudih 1962 1.70
3 Patherdih 1964 1.60
5 Moonidih 1983 1.60
4 Sudamdih 1981 1.60
6 Mohuda 1990 0.63
7 Madhuban 1998 2.50
TOTAL (Coking Coal)   11.63
       
B. Non-Coking Coal:    
1 Dugda – I 1961/1998 1.00
TOTAL (Non-Coking Coal)   1.00
GRAND TOTAL   12.63
Remarks:    
  Dugda-I stoped since Oct.’96 for safety reasons and its Sink Upgradation Section is being used for production of washed power coal w.e.f. ’98.
  Madhuban Washery was originally designed for washing Coking Coal.Due to non-availability of Coking Coal because of stoppage of Block-II OCP, the Washery was temporarily converted for Washing Non-Coking Coal which has been reverted back to washing coking coal again from October 2008.
       
Modernization of Washeries:  
► Revival Plan of BCCL provides Rs. 125 Crores for Renovation of Washeries.
► Study was undertaken by CMPDI for performance improvement.
► In the 1st Phase, the Revival Schemes involving an expenditure of Rs. 54.80 Crores has been approved by BCCL Board for Dugda-I, Dugda-II, Bhojudih, Sudamdih, Moonidih & Mohuda Washeries and they are under various stages of implementation.

PERFORMANCE OF BCCL WASHERIES

      (Fig in ‘ 000 T)
Year R/C Feed W/C Prodn. W/C Desp.
Coking:      
2006-07 3129.1 1660.4 1665.8
2007-08 3177.2 1661.5 1679.8
2008-09 3313.8 1604.5 1588.6
 
Non-Coking      
2006-07 4349.1 2717.3 1072.2
2007-08 890.9 788.4 822.4
2008-09 794.4 868.5 876.7

CONSUMERWISE DESPATCH:

a) Washed Coal :   (Fig in ‘ 000 T)
Steel Plant 2006-07 2007-08 2008-09
B S L 559.7 670.7 441.5
B S P 353.2 353.4 451.7
D S P 222.5 313.2 231.2
R S P 291.7 304.7 261.5
IISCO 238.8 18.9 23.2
DPL – – 15.2
RINL – 18.8 164.2
Total 1665.8 1679.7 1588.6
b) W/Power Coal :   (Fig in ‘ 000 T)
Power Plant 2006-07 2007-08 2008-09
BSL 209.3 7.0 11.7
BSP – – 8.2
BPSCL – 84.2 131.3
DSP 21.0 3.8 88.5
RSP – 3.6 14.3
DCOP 838.4 – –
KTPP – 3.6 –
Panipath – 720.1 618.9
Ropar 3.6 0.0 3.7
Total 1072.3 822.5 876.7

c) Middlings :     (Fig in ‘ 000 T)
Power Plant 2006-07 2007-08 2008-09
Bhatinda – – –
BPSCL – 93.3 28.7
BSL 288.3 24.9 16.1
BSP – – 3.0
DSP 260.1 174.3 164.2
IISCO 0.7 – –
KTPP 7.2 32.3 156.6
MTPS 346.5 553.2 416.6
NALCO – 14.3 –
Panipath 3.8 – –
RSP – 3.8 17.6
STPS 120.8 139.4 104.7
Total 1027.3 1035.5 907.5

DESPATCH OF SLURRY & REJECTS: (Fig in ‘ 000 T)
By-Product 2006-07 2007-08 2008-09
Slurry 120.6 62.7 420.1
Reject 183.8 85.7 80.6
Total 304.4 148.4 500.6
Performance Highlights of the Year 2008-09

The company has concluded the year 2008-09 with excellent performance, as mentioned hereunder:-

  • Production of Washed Power Coal increased from 7.9 LT in FY 2007-08 to 8.7 LT in the FY 2008-09 i.e. a growth of about 10%.
  • Dispatches of Washed Power Coal also registered a growth of about 7% over Washed Power Coal dispatches during the year 2006-07.
  • Increase in Stock Liquidation during 2008-09 as compared to 2007-08. The Stock liquidation during 2008-09 valued Rs. 40.01 Crores as compared to Rs. 5.94 Crores during 2007-08.
  • BCCL Washeries (other than Madhuband) have recorded an increase in profit of 55.6% during 2008-09 as compared to 2007-08.
  • Increase in the dispatch/sale of Slurry during 2008-09 as compared to 2007-08.
  • All Washeries continue to maintain Closed Water Circuit and “Zero Discharge” is ensured.
  • Employees’ welfare, safety, training and community development continued to be the other focus areas.

PROFIT/LOSS STATEMENT OF BCCL WASHERIES

Amt. in Rs. Lakhs

Washery 2006-07 2007-08 2008-09
Dugda-I 633.2 2.7 -97.9
Dugda-II 2664.5 2066.8 6129.8
Bhojudih 2235.5 2429.1 7966.0
Patherdih -813.3 -1438.0 -3712.7*
Sudamdih 1436.3 410.0 66.0
Moonidih 3713.4 3596.4 328.3
Mohuda 896.0 -140.4 96.9
Total 10765.6 6926.6 10776.4

* The loss of Patherdih includes Rs. 24.0 Crores

provision for stock deterioration.

PROPOSED WASHERIES AT BCCL
Name of the Washery Capacity (Mtpa)
NLW:  
Madhuban 5.0
Patherdih 2.5
Dugda 2.5
Sub-Total 10.0
   
Non Coking:  
Patherdih 5.0
Bhojudih 2.0
Dahibari 1.6
Sub-Total 8.6
G.Total 18.6
ENVIRONMENTAL AWARENESS  Major Pollution Control Measures taken in BCCL Washeries:
  • Effluent treatment / Re-circulation arrangement
  • Water Sprinkling in a radius of nearly 2 km of the Washery
  • Tree Plantation around Washery premises and colonies done every year.
  • Rain Water Harvesting

Other key activities for effective pollution control:

  • Systematic and scientific excavation of the slurry ponds to make the space available for settling of fines in the ponds / dyke area itself and recycle back the clear water through pumps for re-use in the plant as process water.
  • The recycling pumps have been fully renovated and are operating under strict supervision to avoid any out flow of even clear water.
  • Market has been found for sale of old stock of slurry of the Washery.

Disposal of Washery By-products during the period 06-07 to 08-09 has been as follows:-

By-Product 2006-07(‘000T) 2007-08(‘000T) 2008-09 (‘000T)
Middlings 1027.3 1035.5 907.5
Slurry 120.6 62.7 420.1
Reject 183.8 85.7 80.6

Future Plans:

  • Capital replacements wherever required in the existing system of pollution control measure will be carried out.
  • Fine coal circuit will be modernized with automation and instrument control system.
  • General awareness for eco-friendly environment among all concerned.
WELFARE MEASURES
Social Welfare programmes organised at various hospitals / Dispensaries
during 2008-09 are as follows:
Name of Unit   Camp Organised Date  
Washery Division Dispensary i. Hypertension Camp   4.12.08
  ii. Village Health Checkup camp   22.12.08
  iii. Health awareness camp   9.01.09
  iv. Aids awareness camp   19.01.09
  v. Mobile van-village health checkup done in different villages.   4.02.09 to 06.02.09
 
Dugda Coal Washery i. Baby Show   12.02.09
  ii. School Health Checkup Programme   26.02.09
  iii. Health Awareness Camp   28.02.09
  iv. Wellness Clinic (CSR) at Hospital   Daily
  v. Mobile van-village health checkup done in different villages & medicine distributed   17.02.09 to 21.02.09
 
Bhojudih Coal Washery i. Health Awareness Camp   14.12.08 to 09.01.09
  ii. Aids awareness programme   27.01.09
  iii. BP checkup Camp   12.02.09
 
Patherdih Coal Washery i. BP checkup Camp   10.01.09
  ii. Diabetes detection Camp   15.11.08
  iii. Mobile van-village health checkup done in different villages.   30.12.08 to 31.12.08